
/************* cookie *********************/
var cookiePath = "/smart4j/";
function setCookie(name,value,path) {
    var Days = 30;//30天
    var exp = new Date(); 
    exp.setTime(exp.getTime() + Days*24*60*60*1000);
    var pathTmp = path!=undefined?path:cookiePath;
    document.cookie=name+"="+escape(value)+";expires="+exp.toGMTString()+";path="+pathTmp;
} 
//读取cookies 
function getCookie(name) { 
    var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)"); 
    if(arr=document.cookie.match(reg)) 
        return (unescape(arr[2])); 
    else 
        return null; 
} 
//删除cookies 
function delCookie(name,path) {
    var exp = new Date(); 
    exp.setTime(exp.getTime() - 1); 
    var cval=getCookie(name);
    if(cval!=null){
    	var pathTmp = path!=undefined?path:cookiePath;
        document.cookie=name+"="+cval+";expires="+exp.toGMTString()+";path="+pathTmp;
    }
}  

		